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Finding the Fourth Proportional to 73.33, 109.25 and 70.23

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Solution

The fourth proportional to 73.33, 109.25 and 70.23 is: 104.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.33 : 109.25 = 70.23 : x
  2. Step 2: Convert to fraction form
    73.33/109.25 = 70.23/x
  3. Step 3: Cross multiply
    73.33x = 109.25 × 70.23
  4. Step 4: Simplify right side
    73.33x = 7,672.63
  5. Step 5: Solve for x
    x = 7,672.63/73.33
  6. Step 6: Final answer
    x = 104.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.